EP 0311103 B1 19940323 - Process for production of cellulose acetate molding materials.
Title (en)
Process for production of cellulose acetate molding materials.
Title (de)
Verfahren zur Herstellung von Zelluloseazetat-Formmasse.
Title (fr)
Procédé pour la préparation de matériaux à mouler d'acétate de cellulose.
Publication
Application
Priority
- JP 25257387 A 19871008
- JP 25386987 A 19871009
Abstract (en)
[origin: EP0311103A2] A process for producing a cellulose acetate molding material which comprises dissolving cellulose diacetate in a mixed solvent of acetone and water to prepare a dope and then spinning or film forming the dope, wherein at least one compound selected from the group consisting of water-soluble salts and bases is added to the water to be used in preparation of the dope. The process has no problems of fiber break, formation of fish eye on molded films and so on.
IPC 1-7
IPC 8 full level
C08J 5/18 (2006.01); C08L 1/12 (2006.01); D01F 2/28 (2006.01)
CPC (source: EP US)
C08J 5/18 (2013.01 - EP US); C08L 1/12 (2013.01 - EP US); D01F 2/28 (2013.01 - EP US); C08J 2301/12 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0311103 A2 19890412; EP 0311103 A3 19900502; EP 0311103 B1 19940323; CA 1327426 C 19940308; DE 3888618 D1 19940428; DE 3888618 T2 19940811; US 4888147 A 19891219
DOCDB simple family (application)
EP 88116659 A 19881007; CA 579396 A 19881005; DE 3888618 T 19881007; US 25476788 A 19881007